Adyen Sandbox
A stateful Adyen Checkout sandbox with the full payment lifecycle, capture, refund, and webhook events. Test your Adyen integration without waiting for merchant approval or sharing a test environment with your team.
Test Scenarios
Authorized Payment
POST /payments with card data returns AUTHORISED
Capture
Capture an authorized payment, fires CAPTURE webhook
Refund
Issue partial or full refund with REFUND webhook
Cancel
Void an uncaptured authorization
3D Secure 2
Trigger requires_action flow for SCA
Declined
REFUSED with realistic refusal reason codes
Chargeback
NOTIFICATION_OF_CHARGEBACK webhook
Payment Link
Create payment link, simulate completion
Recurring Payment
Tokenized recurring transaction flow
Pre-seeded Resources
FAQ
Do I need an Adyen merchant account?
No. FetchSandbox runs a fully local mock of the Adyen Checkout API. No merchant approval, no shared test environment.
Does it handle 3D Secure?
Yes — the sandbox simulates the redirect/challenge flow for SCA testing without real card data.
Can I test webhook handlers?
Yes. AUTHORISATION, CAPTURE, REFUND, NOTIFICATION_OF_CHARGEBACK and other Adyen webhook events fire on every state transition and can be replayed.
Ready to test your Adyen integration?
Free tier — 3 sandboxes, 10,000 requests/month. No credit card required.
Open Adyen Portal